Skip to content

Instantly share code, notes, and snippets.

@grahamperrin

grahamperrin/firefox-cross-site-cookies.md

Last active March 1, 2021 07:25
Show Gist options
  • Save grahamperrin/219a681fadb4a354782c2b64f39d6725 to your computer and use it in GitHub Desktop.
Save grahamperrin/219a681fadb4a354782c2b64f39d6725 to your computer and use it in GitHub Desktop.
Download ZIP
Raw
firefox-cross-site-cookies.md

Visualising cross-site cookie protection in Firefox

Firefox 86.0

In privacy and security preferences for Firefox:

  • choose strict enhanced tracking protection.

Sign in to Reddit, then view (or review) security information – a single click on the padlock icon, in the address field – when visiting each of the pages below.

  1. https://old.reddit.com/r/freebsd/comments/knj21h/-/
  2. https://old.reddit.com/r/freebsd/comments/knj21h/-/ghmuj7g/?context=2
  3. https://www.reddit.com/r/freebsd/comments/knj21h/-/ghmuj7g/?context=2
  4. https://new.reddit.com/r/freebsd/comments/knj21h/-/ghmuj7g/?context=2
  5. https://np.reddit.com/r/freebsd/comments/knj21h/-/ghmuj7g/?context=2
  6. https://reveddit.com/r/freebsd/comments/knj21h/-/ghmuj7g/?context=2

At steps 2, 3, 4 and 5 you should find cross-site cookies allowed for up to four Reddit sites – each one an eTLD+1 – in alphabetical order:

new.reddit.com
 np.reddit.com
old.reddit.com
www.reddit.com

At step 6 you should find protection:

np = no participation

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment